08-11-2016
Quote:
PROBLEM: I only need one row from file1 that is an equal match or nearest match to file2 timestamp/s row/s and precede the file2 row/s (1 file1 row to 1 to many file2 rows). As you can see on this “example”, there are 3 rows (after first header) from file1 that are not needed. I only need the file1 row with timestamp “16:03:10”. So basically I only need the last row from file1 (AP_ID=572) to precede file2 row/s (1 to many). The space is only for readability between matched data.
Sorry, but I do not understand what you are writing here at all. Can you explain in detail with an example with your shown data on every sentence what you are trying to achieve?
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XZDIFF(1) XZ Utils XZDIFF(1)
NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files
SYNOPSIS
xzcmp [cmp_options] file1 [file2]
xzdiff [diff_options] file1 [file2]
lzcmp [cmp_options] file1 [file2]
lzdiff [diff_options] file1 [file2]
DESCRIPTION
xzcmp and xzdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), bzip2(1), or lzop(1). All options specified
are passed directly to cmp(1) or diff(1). If only one file is specified, then the files compared are file1 (which must have a suffix of a
supported compression format) and file1 from which the compression format suffix has been stripped. If two files are specified, then they
are uncompressed if necessary and fed to cmp(1) or diff(1). The exit status from cmp(1) or diff(1) is preserved.
The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.
SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zdiff(1)
BUGS
Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified.
Tukaani 2011-03-19 XZDIFF(1)